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Finding the Fourth Proportional to 12,873.56, 19,324.11 and 11,401.93

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Solution

The fourth proportional to 12,873.56, 19,324.11 and 11,401.93 is: 17,115.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.56 : 19,324.11 = 11,401.93 : x
  2. Step 2: Convert to fraction form
    12,873.56/19,324.11 = 11,401.93/x
  3. Step 3: Cross multiply
    12,873.56x = 19,324.11 × 11,401.93
  4. Step 4: Simplify right side
    12,873.56x = 220,332,052.91
  5. Step 5: Solve for x
    x = 220,332,052.91/12,873.56
  6. Step 6: Final answer
    x = 17,115.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.